Extension table



Nov. 3; 1925. 1,559,711 0. c. KUSTERER EXTENSION TABLE Original Filed Dec. 10, 1915 2 sheets-5M" 1 w m M v r s 1 Y M 1 m m E 2 N e w H m a N w h. A 6 m 6/ IXI...

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WITNESS s 1764 fl/A Nov. 3 1925- C. 5.3, KUSTERER EEK-TENS I ON TABLE Original Filed Dec. 10, 191-5 2 Sheets-Sheet 2 WITNESSES:

T'E JLP INVENTOR. Carl C. Kustercr A 'TTOR NE YS.

Patented Nov. 3, 1925.

UNITED STATES CARL C. KU'STERER, GRAND RAPIDS, MICHIGAN, ASSIGNOR, BY. DIRECT AND- PATENT omcat MESNE ASSIGNMENTS, O'F ONE-THIRDJI'O ST. JOHNS TABLE COMPANY, OF CADIL- LAG, MICHIGAN, AND ONE-THIRD. TQ ALBERT STICKLEY, OF GRAND RAPIDS,

MICHIGAN.

EXTENSION TABLE.

' continuation of application SerialNo. 805,797, filed December 10, 1913. This application filed March 30,

1916, Serial No. 87,726. Renewed February 4-, 1925.. 7

To all whom it may concern:

Be it known that I, CARL G. KUSTERER, a citizen of the United States, residing at Grand Rapids, Michigan, have invented certain new and useful Improvements in Ex tension Tables, of which the following is a specification. I

This invention relates to improvements in extension tables- This application is a continuation of applicants copending application Serial No.

805,797, filed December 10, 1913.

The objects of the invention are:

First, to provide an improved slide for an extension table wherein efficient equalization of the movement of the slide members is secured. I

Second, to provide in such a device a structure in which friction between the parts is minimized.

Further objects, and' objects relating to details and economies'of construction and operation will definitely appear from the detailed description to follow.

' I accomplish the objects of my invention by the devicesand means described in the following specification.- The invention is clearly defined and pointed out in the claims.

Structures constituting preferred embodiments of my invention are fully illustrated in the accompanying drawing forming a part of this specification, in which:

Fig. I is a perspective view of my improved extension table in closed position.

Fig. II is an enlarged plan view of a set of the slides'used with the said table, with the top removed and the *extension movement indicated by dotted lines;

Fig. III is a; detail'horizontal fragmentary view through one of the slide groups show 2 ing the arrangement of the various slide members taken on line 3-3 of Fig. IV.

Fig..IV is an enlargeddetail transverse section through one of the slide parts showing. the disposition of the slidemembers,

the equalizing means, and the top, taken on irregular line 4-4: of Figs;-II and III.

Fig. V is an enlarged side elevation of a slide member showing the tongue and slide plate 'securedthereto.

Fig. VI is an enlarged detail transverse section which shows the details of 'the slide members and the stop means therebetween, taken on line 66 of FigsJII and III.

Fig. VII is an enlarged detail horizontal sectionshowing details of the slide members and the stop means'therebetween, taken on line 77 of Fig. VI. r

Fig. VIII is a modified plan view of one of the slide parts made up of three members. Fig. IX is an enlarged sectional view on line 9-9 of Fig. VIII. t

Fig. X is a view similar to Fig. VII of a slide part made up of seven members embodying my invention.

Flg. XI 15 an enlarged sectional view taken on line 11-11 of Figs. II, VIII and X, showing the retaining guide for the cable on the pulley,

Considering the numbered parts of the drawing, the table is an extension table provided with the usual top 1, pedestal 2 with cured by suitable screws 7 ,to one of thehalves of the table top 1 -(Figs. II and III).

The outerslide members 8 and" 8' are' likewise secured bythe screws 9 and 9v to the 'opposite'half of the table top. Interposed between the'central slide members 5 and 5' and the inner slide members 6 and .6 and the outer slide members 8 and 8? are the free slide members lOsan'd 10. Thesemembers 10 and 10 are not as deep as the other, slide groups is shown in Fig-IV wherein the outer slide8, the free slideslO and the cen- "members, thereby affording sufficient'space for the cable-of the equalizing-device, Fig. IV. A transverse detail of one of the slide tral slide 5 are provided with tongues 11 which fit into longitudinal grooves 12 in adjacent slide members. Gr0oves'12 have T- extensions 13 in their respective slide members which are adapted to slidably retain theslide plates 14 secured by-screws,15,

(Fig. III) to the sides of each tongue 11. Stop pins 15 are driven into each slide, the ends of which project into longitudinal slots 16 which are of such length as to properly limit the movement of the particular slide member. Disposed on the opposite ends of the central slide members and 5 .are

' grooved pulleysl'? and 17 respectively, carried on suitable journal pins 18 and 18, respectively. A cable 19 is disposed around pulley 17 and connects the opposite ends of the outer slide 8 and the inner slide 6.

Around pulley 17 is disposed a similar cable 19' which connects the opposite ends of the outer slide member 8 and the inner slide member 6'. Each cab-1e is held to its pulley by a suitable guide plate 20. See Figs.

' VIII, X and XI.

' The general arrangement of the slides, as described above, is usual. My improvement in a practical manner insures that when one of the top halves is pulled out or pushed in, the other top half will be similarly actuated by means of the said cables while the'stop means limit the travel of the slides.

A further special feature of my table is that the tongue 11 is suitably rabbeted or relieved on its lower face at 21 where the said face is out of sliding contact with its coacting slide member. Also the groove 13 is -Wide enough to afford clearance below the slide plate 1 1, the purpose of this plate only being to retain the slides together and to take the lateral thrust which may come on the various members.-

I In tables of this type, one of the top halves is generally secured to the portions AB and A'B of the top face of the outer slide members 8 and 8. The remaining portions of these members, B-G and BC, I have preferably tapered or relieved so as not to have the top of the same level with the faces AB and AB. The inner slide members have similarly been relieved at DE and D 'E. Therefore, when the table is to be drawn apart, the topis lifted slightly which tiltsthe portion A-B and ted and the. tongue of slide member 8 'engages a groove on one side of slide member 5 while the tongue of slide member 6 engages a groove on the other side of slide member 5. The slide members 8 are rabbeted to accommodate the cable.

In Fig. X, I show the invention applied to a group composed of seven slide members.

There is the usual outer slide member 8, the center slide member 5 and the inner slide member 6. Between the central member, and inner and outer members, are a pair of free slide members 25, 26 and 27, 28, the details of which are exactly as above described. The pulleys .17 and their. outer guides 20 are provided onthe outer members. With this group a pair of cables 31 and 32 is used which are disposed around the said pulleys and connect the opposite ends of the outer slide 8 and the innerslide 6. The action of a set of a seven slide group is similar to the other above shown. The extension is somewhat greater and the strength of the group is increased, due to a longer lap between adjacent slide members, so that the table may support a heavier load. The free slides 25, 26 and 27, 28 have-suitable clearance on their top sides to permit the movement of cables 31 and 32.

I have described and shown my invention as especially adapted to extension tables in which the slides are made up of wooden members. It is, however, very clear that the same will operate effectively no matter what sort of members constitute the slide parts.

The improved equalizing slides are adapted to other stylesof extension tables than those illustrated, but I believe I'have fully illustrated my invention in this behalf.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: a

1. In an extensiontable, slides comprising a central member adapted to attach to the bridge of the table, slide members at each side secured to the opposite portions of the table top, intermediate free slides disconnected from boththe bridge and the top, with clearance spaces at thetop, oppositely disposed grooved pulleys on the opposite ends of the said centralv slides, and cable connections from the outer slides over the said'pulleys to the inner slides and extending through said clearance spaces, disposed to equalize the opposite movements thereof, coactlng for the purpose specified.

2. In an extension table, slides compr'ising a central member adapted to attach to the bridge of the table, slide-members at.

each side secured to the opposite portions of the table top, intermediate free slides disconnected from both the bridge and the top, with clearance spaces at the top, slide tongues between the said slides, the under portions of which are rabbeted away, the free ends of the slides being tapered to relieve friction thereon, oppositely disposed grooved pulleys on the opposite ends of the said central slides, and cableconnections from the outer slides over the said pulleys to the inner slides, disposed to equalize the opposite movements thereof, coacting for the purpose specified.

3. A. table slide structure comprising a central slide adapted to be secured to the bridge of the table, an outer slide member secured to one portion of the table top and an inner slide member secured to the opposite portion of the table top, slide tongues between the said slides, the under portions of which are rabbeted away, the free ends of the slides being tapered to relieve friction thereon, a pulley with a vertical axis on the central slide, a cable looped over said pulley and connecting the inner slide member to the outer slide member, clearance way being formed in said slides for the cable, whereby the movements of the slides are equalized.

4:. In an extension table, slides comprising a central member adapted to attach to the bridge of the table, slide members at each side secured to the opposite portions of the table top, intermediate free slides disconnected from bot-h the bridge and the top, with clearance space at the top, oppositely disposed grooved pulleys on the opposite ends of the said central slides, cable connections from the outer slides over the said pulleys to the inner slides, disposed to equalize the opposite movement thereof.

5. A table slide structure comprising a central slide adapted to be secured to the bridge of the table, an outer slide member secured to one portion of the table top and an inner slide member secured to the opposite portion of the table top, a pulley with a vertical axis on the central slide, a cable looped over said pulley and connecting the inner slide member to the outer slide member, clearance way being formed in said slides for the cable, whereby the movements of the slides are equalized, and a guard for retaining the cable in said pulley.

6. In an extension table, slides comprising a central member adapted to be attached to the bridge of the table, slide. members at each side secured to the opposite portions of the table top, intermediate free slides disconnected from both the bridge and the top, oppositely disposed grooved pulleys on the opposite ends of the said central slides, and cable connections from the outer slides over the'said pulleys to the inner slides, dis posed to equalize the opposite movement thereof.

7. A table slide structure comprising a central slide adapted to be secured to the bridge of the table and to contact with and support separate portions of the table top which are slidably supported thereon, an

outer slide member secured to one portion of the table top and adapted to slide under the opposite portion of said top and in contact therewith, an inner slide member secured to said opposite portion of the table top and adapted to slide under said first 65 ent slide tongues between said slide porportion and in contact therewith, independ- In witness whereof, I have hereunto set my hand and seal.

CARL o. KUSTERER... [1 a 

